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Finding the Fourth Proportional to 641,141.40, 884,698.04 and 369,297.71

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Solution

The fourth proportional to 641,141.40, 884,698.04 and 369,297.71 is: 509,586.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,141.40 : 884,698.04 = 369,297.71 : x
  2. Step 2: Convert to fraction form
    641,141.40/884,698.04 = 369,297.71/x
  3. Step 3: Cross multiply
    641,141.40x = 884,698.04 × 369,297.71
  4. Step 4: Simplify right side
    641,141.40x = 326,716,956,713.24
  5. Step 5: Solve for x
    x = 326,716,956,713.24/641,141.40
  6. Step 6: Final answer
    x = 509,586.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.